CN113716488A

CN113716488A - Lifting platform device

Info

Publication number: CN113716488A
Application number: CN202111147998.4A
Authority: CN
Inventors: 何平; 景满军; 马骏
Original assignee: 719th Research Institute of CSIC
Current assignee: 719th Research Institute of CSIC
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2021-11-30

Abstract

The invention provides a lifting platform device which comprises a chassis, a lifting mechanism, a walking mechanism, a control system and a loading platform. The lifting mechanism and the traveling mechanism are both arranged on the chassis. The lifting mechanism is electrically connected with the control system. The loading platform is arranged on the lifting mechanism, and the control system drives the loading platform to lift by controlling the lifting mechanism to lift. The loading platform is mainly used for supporting equipment or devices to be lifted and providing an installation and limiting interface for the equipment or devices to be lifted. The running gear has a full-stroke wheel for the travel of the chassis, i.e. for the travel of the entire device. In this embodiment, the traveling mechanism is arranged to drive the lifting mechanism to move, so that the lifting mechanism is convenient for lifting the loading platform in an environment with a narrow passage, and the adaptive capacity of the operation environment of the lifting platform device is improved.

Description

Lifting platform device

Technical Field

The invention relates to the technical field of lifting platforms, in particular to a lifting platform device.

Background

With the continuous increase of economy and the continuous breakthrough of the technological level of each field, the application of the lifting platform device in each professional field is deepened and developed continuously. The lifting platform device is a mechanical device driven by an external driving device to lift, and mainly has the function of lifting equipment or devices. Generally, a conventional lifting platform device is transferred by an external power device, and then a hydraulic cylinder is used for driving the lifting platform to perform lifting operation. The traditional lifting device uses a storage battery as lifting driving power, so that the energy cleanliness is low, and dangerous waste is easily generated; and lifting devices can occupy a larger external space environment in the transfer process, have higher requirements on the operation environment, and are not suitable for performing related lifting operation in the narrow channel environment.

In order to improve the environmental protection property of driving power energy of the lifting device and enhance the adaptability of the lifting device to the operating environment, the invention provides a novel lifting platform device and a working method thereof, so that the lifting platform device is suitable for lifting operation of relevant equipment or devices under severe environments such as narrow passage, difficult personnel to enter and exit and the like.

Disclosure of Invention

The invention aims to provide a lifting platform device, which solves the problem that the existing lifting platform device has higher requirements on the working environment.

The invention provides a lifting platform device, which comprises a chassis, a lifting mechanism, a walking mechanism, a control system and a loading platform, wherein the chassis is provided with a lifting mechanism; the lifting mechanism and the travelling mechanism are both arranged on the chassis; the lifting mechanism is electrically connected with the control system; the loading platform is arranged on the lifting mechanism, the control system drives the loading platform to lift by controlling the lifting mechanism to lift, and the travelling mechanism is used for advancing the chassis.

Optionally, the lifting platform device further comprises a monitoring mechanism, the monitoring mechanism is used for detecting the environment of the chassis and is in communication connection with the control system to generate a traveling route of the chassis; the running mechanism is electrically connected with the control system, and the control system drives the chassis to move along the travelling route by controlling the running mechanism to move.

Optionally, running gear includes a plurality of full stroke wheels, every the full stroke wheel includes first walking wheel, first walking wheel around the perpendicular to the length direction's on chassis axis install in the chassis, all be provided with a plurality of edges on two wheel faces of first walking wheel the second walking wheel of the circumference interval setting of first walking wheel, the second walking wheel rotationally install in the edge of the corresponding wheel face of first walking wheel, the axis of rotation perpendicular to of second walking wheel the axis of rotation of first walking wheel with the radial direction of first walking wheel.

Optionally, the lifting mechanism comprises two drive cylinders and two scissor lift arms; the two scissor type lifting arms are respectively arranged at two sides of the chassis, and the loading platform is arranged at the upper ends of the scissor type lifting arms; and the two driving cylinders are used for driving the scissor type lifting arm to lift.

Optionally, the scissor type lifting arm comprises two lifting rods, one ends of the two lifting rods are rotatably connected with the loading platform, the other ends of the two lifting rods are rotatably connected with the chassis, and the two lifting rods are in cross connection through a rotating shaft.

Optionally, the monitoring mechanism includes a camera assembly and a sensing assembly, the camera assembly includes two cameras, and the two cameras are mounted at two ends of the chassis; the sensing assembly comprises four photoelectric sensors, and the four photoelectric sensors are respectively arranged on the periphery of the chassis.

Optionally, the control system includes a lithium battery and an integrated processor, both the lithium battery and the integrated processor are mounted on the chassis, and the integrated processor is electrically connected to the lithium battery; the lifting mechanism, the walking mechanism and the monitoring mechanism are respectively in communication connection with the integrated processor.

Optionally, lift platform device still includes and pull the piece, pull the piece install in chassis one end, pull the piece and include installation department and connecting portion, the installation department with the chassis is connected, connecting portion install in installation department one end, connecting portion are cyclic annular.

Optionally, the chassis includes an outer frame, a first connecting arm and two second connecting arms, and the monitoring mechanism is mounted on the outer frame; the first connecting arm spans two sides of the outer frame, the lifting mechanism is positioned between the first connecting arm and one end part of the outer frame, and the control system is positioned between the first connecting arm and the other end part of the outer frame; the second connecting arms are connected with two ends of the outer frame, the lifting mechanism and the control system are both arranged on the second connecting arms, and the lifting mechanism is positioned between the two second connecting arms; the traveling mechanism is installed on one side, facing the outer frame, of the second connecting arm.

Optionally, the travelling mechanism further comprises two travelling wheel rotating shafts, two pull rods and a driving device;

the walking wheel rotating shaft extends along an axis perpendicular to the length direction of the chassis and is arranged on the chassis; two ends of each travelling wheel rotating shaft are hinged with one first travelling wheel, each pull rod is arranged on one side of one travelling wheel rotating shaft, and two ends of each pull rod are connected with the two first travelling wheels; the driving device is used for driving the two walking wheel rotating shafts to rotate and changing the length of the pull rod.

According to the lifting platform device, the traveling mechanism is arranged to drive the lifting mechanism to move, so that the lifting mechanism is convenient for lifting the loading platform in an environment with a narrow passage, and the adaptive capacity of the operation environment of the lifting platform device is improved. The environment where the chassis is located is monitored by the monitoring mechanism, the barrier is detected, the barrier signal is transmitted to the control system, the control system plans the traveling route of the traveling mechanism according to the received signal, and the automation and intelligence level of the lifting platform device is improved.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic diagram of a lift platform assembly according to one embodiment of the present invention;

FIG. 2 is a front view of a lift platform assembly according to one embodiment of the present invention;

FIG. 3 is a bottom view of a lift platform assembly according to one embodiment of the present invention;

fig. 4 is a schematic diagram of a traveling mechanism in a lifting platform assembly according to one embodiment of the present invention.

Detailed Description

As shown in fig. 1 to 3, an embodiment of the present invention provides a lifting platform device, which includes a chassis 10, a lifting mechanism 20, a traveling mechanism 30, a control system 5, and a loading platform 6. The lifting mechanism 20 and the traveling mechanism 30 are both mounted on the chassis 10. The lifting mechanism 20 is electrically connected to the control system 5. The loading platform 6 is arranged on the lifting mechanism 20, and the control system 5 drives the loading platform 6 to lift by controlling the lifting mechanism 20 to lift. The loading platform 6 is mainly used for supporting equipment or devices to be lifted and providing an installation and limiting interface for the equipment or devices to be lifted. The running gear 30 is used for the running of the chassis 10, i.e., for the running of the entire apparatus. In the embodiment, the traveling mechanism 30 is arranged to drive the lifting mechanism 20 to move, so that the lifting mechanism 20 is convenient for lifting the loading platform 6 in an environment with a narrow passage, and the adaptive capacity of the working environment of the lifting platform device is improved.

In some embodiments of the invention, the lift platform device further comprises a monitoring mechanism 40. The monitoring mechanism 40 is used to detect the environment of the chassis 10 and is communicatively coupled to the control system 5 to generate a travel route for the chassis 10. The traveling mechanism 30 is electrically connected to the control system 5. The control system 5 controls the traveling mechanism 30 to move so as to drive the chassis 10 to move along the planned traveling route. For example, the monitoring mechanism 40 includes a camera assembly and a sensing assembly, the camera assembly includes two cameras 41, and the two cameras 41 are mounted at two ends of the chassis 10 for monitoring the moving track of the chassis 10 in real time. The sensing assembly comprises four photoelectric sensors 42, the four photoelectric sensors are arranged at the periphery of the chassis 10 at intervals, for example, the four photoelectric sensors are respectively arranged at the periphery of the chassis 10, and are used for detecting obstacles around the chassis 10 in real time and transmitting obstacle signals to the control system 5 to provide audible and visual alarms.

In this embodiment, the monitoring mechanism 40 is arranged to monitor the environment of the chassis 10, detect an obstacle, and transmit an obstacle signal to the control system 5, and the control system 5 plans the traveling route of the traveling mechanism 30 according to the received signal and avoids the obstacle in real time, so that the automation and intelligence level of the lifting platform device can be significantly improved.

As shown in fig. 1-3, in some embodiments of the present invention, the travel mechanism 30 includes a plurality of full-stroke wheels. Each full-stroke wheel comprises a first travelling wheel 31, a plurality of first travelling wheels 31 are mounted on the periphery of the chassis 10, and the first travelling wheels are mounted on the chassis 10 around an axis 31 perpendicular to the length direction of the chassis 10. Specifically, the number of the first running wheels 31 is four. A plurality of second road wheels 32 are installed on two wheel faces of the first road wheel 31, and the plurality of second road wheels 32 are arranged at the edge of the wheel face at intervals along the circumferential direction of the corresponding wheel face. The axis of rotation of the second road wheel 32 is perpendicular to the axis of rotation of the first road wheel 31 and the radial direction of the first road wheel 31. The second road wheels 32 are rotatably mounted on the first road wheels 31, the second road wheels 32 rotate around the side line of the wheel surface of the first road wheels 31, and the chassis 10 can run in multiple directions by arranging the second road wheels 32 in different directions from the rotation direction of the first road wheels 31. The lifting platform device using the full-stroke wheel for transferring can enhance the adaptability of the lifting platform device to the operation environment, thereby realizing the carrying and lifting operation of related equipment and devices under the severe environment that the channel is narrow and personnel are not suitable to enter and exit.

In some embodiments of the present invention, as shown in fig. 4, the traveling mechanism further includes two traveling wheel rotating shafts 33, two pull rods 34, and a driving device. The road wheel rotating shaft 33 extends along an axis perpendicular to the length direction of the chassis 10 (i.e., the width direction of the chassis 10), and is mounted to the chassis 10. Two ends of each walking wheel rotating shaft 33 are hinged with a first walking wheel 31, each pull rod 34 is arranged on one side of one walking wheel rotating shaft 33, and the two ends of each pull rod are connected with the two first walking wheels 31. The driving device is used for driving the two walking wheel rotating shafts 33 to rotate and changing the length of the pull rod 34, for example, the driving device may include two first driving devices and two second driving devices. The first driving device may be a rotating motor for driving the rotating shaft 33 of the traveling wheel to rotate. The second drive means may be a linear motor for varying the length of the tie rod 34. When the lifting platform device moves forwards and backwards, the first walking wheels 31 are perpendicular to the walking wheel rotating shafts 33 through the second driving device and the pull rods 34, when the lifting platform device needs to move laterally, the included angle between the first walking wheels 31 and the walking wheel rotating shafts 33 is approximately 45 degrees through the second driving device and the pull rods 34, the included angle between the front first walking wheels 31 and the rear first walking wheels 31 is approximately 90 degrees, the first driving device drives the corresponding first walking wheels 31 to rotate, the front first walking wheels 31 and the rear first walking wheels 31 rotate in opposite directions, and the lifting platform device realizes lateral movement leftwards or rightwards under the action of the resultant force of radial force and axial force. Further, both ends of the pull rod 34 may be rotatably mounted to the corresponding first running wheels 31 by means of a turntable, so that the pull rod 34 does not rotate with the first running wheels 31.

As shown in fig. 1-3, in some embodiments of the invention, the lifting mechanism 20 includes two drive cylinders 23 and two scissor lift arms. The two scissor type lifting arms are respectively arranged at two sides of the chassis 10, and the loading platform 6 is arranged at the upper ends of the scissor type lifting arms. Two driving cylinders 23 are used for driving the scissor type lifting arm to lift. Namely, the piston rod of the driving cylinder 23 is stretched to drive the scissor type lifting arm to lift, thereby realizing the lifting of the loading platform 6. The drive cylinder 23 may be an electric cylinder.

As shown in fig. 1 and 2, the scissor lift arm includes two lift rods 24, a lower end of one lift rod 24 is rotatably connected to the chassis 10, a lower end of the other lift rod 24 is slidably connected to the chassis 10 in the front-rear direction, an upper end of one lift rod 24 is rotatably connected to the loading platform 6, an upper end of the other lift rod 24 is slidably connected to the loading platform 6 in the front-rear direction, and the two lift rods 24 are cross-connected by providing a rotating shaft. The lifting mechanism 20 further comprises an installation rod 21 and a connecting shaft 22, the installation rod 21 and the connecting shaft 22 are both located between the two scissor type lifting arms, the installation rod 21 is fixedly connected with the lower ends of the two lifting rods 24 with the lower ends sliding, and the connecting shaft 22 is fixedly connected with the lower ends of the two lifting rods 24 with the lower ends rotating. Two drive cylinders 23 are rotatably mounted on the mounting rod 21, the piston rods of the two drive cylinders 23 being connected to the connecting shaft 22. In some other embodiments, the two lifting rods 24 are used as a lifting unit, a plurality of lifting units are sequentially arranged along the up-down direction to form the scissor-type lifting arm, and the mounting rod 21 and the connecting shaft 22 can be arranged at different positions to achieve the retraction and expansion of the scissor-type lifting arm.

As shown in FIG. 1, in some embodiments of the present invention, the control system 5 includes a lithium battery and an integrated processor, both mounted on the chassis 10, the integrated processor being electrically connected to the lithium battery. The lifting mechanism 20, the walking mechanism 30 and the monitoring mechanism 40 are respectively in communication connection with the integrated processor. The lithium battery is used as a power source, so that the environmental protection performance of the lifting platform device is remarkably improved. The integrated processor is used for receiving the obstacle signals and the moving tracks transmitted by the monitoring mechanism 40 and planning the walking route of the walking mechanism 30.

As shown in fig. 1-3, in some embodiments of the present invention, the lifting platform device further includes a traction member 70, the traction member 70 is mounted on one end of the chassis 10, the traction member 70 includes a mounting portion 71 and a connecting portion 72, the mounting portion 71 is connected with the chassis 10, the connecting portion 72 is mounted on one end of the mounting portion 71, and the connecting portion 72 is in a ring shape. Through setting up and drawing 70 for under the lithium cell drive inefficacy condition, realize lifting platform device's whole transportation through the mode of outside carry vehicle. The towing member 70 may be provided at a right front center position of the chassis 10.

As shown in fig. 1 to 3, in some embodiments of the present invention, the chassis 10 includes an outer frame 11, a first connecting arm 12 and two second connecting arms 13, and the monitoring mechanism 40 is mounted on the outer frame 11, specifically, the outer frame is a square frame. The first link arm 12 spans both sides of the outer frame 11, the lift mechanism 20 is located between the first link arm 12 and one end portion of the outer frame 11, and the control system is located between the first link arm 12 and the other end portion of the outer frame 11. The second connecting arms 13 are connected with two ends of the outer frame 11, the lifting mechanisms 20 and the control system 5 are both mounted on the second connecting arms 13, and the lifting mechanisms 20 are located between the two second connecting arms 13. The traveling mechanism 30 is attached to the side of the second link arm 13 facing the outer frame 11. The outer frame 11 is divided into two areas by the first connecting arm 12, so that the lifting mechanism 20 and the control system 5 are convenient to mount, the overall structure is reasonable and compact in layout, and the stability of the outer frame 11 is enhanced. By providing the second connecting arm 13, the control system 5, the lifting mechanism 20, and the traveling mechanism 30 are provided with mounting positions, and the stability of the outer frame 11 is enhanced. When the full-stroke wheels are mounted inside the outer frame 11, the chassis 10 is configured not to interfere with the rotation of the full-stroke wheels with respect to the travel wheel rotation shafts 33 even if the full-stroke wheels have a sufficient space for movement.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims

1. A lifting platform device is characterized by comprising a chassis, a lifting mechanism, a walking mechanism, a control system and a loading platform; the lifting mechanism and the travelling mechanism are both arranged on the chassis; the lifting mechanism is electrically connected with the control system; the loading platform is arranged on the lifting mechanism, the control system drives the loading platform to lift by controlling the lifting mechanism to lift, and the travelling mechanism is used for advancing the chassis.

2. The lift platform assembly of claim 1, further comprising a monitoring mechanism for detecting an environment in which the chassis is located and communicatively coupled to the control system to generate a travel path for the chassis; the running mechanism is electrically connected with the control system, and the control system drives the chassis to move along the travelling route by controlling the running mechanism to move.

3. A lifting platform device as claimed in claim 1 or 2, wherein the travelling mechanism comprises a plurality of full-travel wheels, each full-travel wheel comprises a first travelling wheel mounted on the chassis around an axis perpendicular to the length direction of the chassis, a plurality of second travelling wheels are provided on both wheel faces of the first travelling wheel at intervals along the circumference of the first travelling wheel, the second travelling wheels are rotatably mounted at the edges of the corresponding wheel faces of the first travelling wheel, and the rotation axis of the second travelling wheel is perpendicular to the rotation axis of the first travelling wheel and the radial direction of the first travelling wheel.

4. The lift platform assembly of claim 1 wherein said lift mechanism comprises two drive cylinders and two scissor lift arms; the two scissor type lifting arms are respectively arranged at two sides of the chassis, and the loading platform is arranged at the upper ends of the scissor type lifting arms; and the two driving cylinders are used for driving the scissor type lifting arm to lift.

5. The device as claimed in claim 4, wherein the scissor lift arm comprises two lift rods, one end of each of the two lift rods is rotatably connected to the loading platform, the other end of each of the two lift rods is rotatably connected to the chassis, and the two lift rods are cross-connected by a rotating shaft.

6. The device as claimed in claim 1, wherein the monitoring mechanism comprises a camera assembly and a sensor assembly, the camera assembly comprises two cameras, and the two cameras are mounted at two ends of the chassis; the sensing assembly comprises four photoelectric sensors, and the four photoelectric sensors are respectively arranged on the periphery of the chassis.

7. The lift platform device of claim 2, wherein the control system comprises a lithium battery and an integrated processor, both the lithium battery and the integrated processor being mounted on the chassis, the integrated processor being electrically connected to the lithium battery; the lifting mechanism, the walking mechanism and the monitoring mechanism are respectively in communication connection with the integrated processor.

8. The device of claim 1, further comprising a traction member, wherein the traction member is mounted to one end of the chassis, the traction member includes a mounting portion and a connecting portion, the mounting portion is connected to the chassis, the connecting portion is mounted to one end of the mounting portion, and the connecting portion is annular.

9. A lifting platform device according to claim 2, wherein the chassis comprises an outer frame, a first connecting arm and two second connecting arms, the monitoring mechanism being mounted on the outer frame; the first connecting arm spans two sides of the outer frame, the lifting mechanism is positioned between the first connecting arm and one end part of the outer frame, and the control system is positioned between the first connecting arm and the other end part of the outer frame; the second connecting arms are connected with two ends of the outer frame, the lifting mechanism and the control system are both arranged on the second connecting arms, and the lifting mechanism is positioned between the two second connecting arms; the traveling mechanism is installed on one side, facing the outer frame, of the second connecting arm.

10. The lifting platform device of claim 3, wherein the traveling mechanism further comprises two traveling wheel rotating shafts, two pull rods and a driving device;